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$187+ Cheap flights from Baltimore (BWI) to Ottawa (YOW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — YOW
Jun 8 — Jun 151
Mon 6/8
Mon 6/15
1 adult, Economy
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Cheap flight deals from Baltimore to Ottawa

Cheapest flights from Baltimore to Ottawa
Explore the most affordable flight options available from Baltimore to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/59:23 pm
BWI
-
YOW
2 stops38h 54m
Multiple Airlines
Fri 6/127:00 am
YOW
-
BWI
1 stop26h 01m
Multiple Airlines
Deal found 5/6$433
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:32 pm
BWI
-
YOW
2 stops19h 21m
Multiple Airlines
Mon 6/297:00 am
YOW
-
BWI
1 stop29h 13m
Multiple Airlines
Deal found 5/8$460
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:28 pm
BWI
-
YOW
1 stop17h 05m
Multiple Airlines
Wed 7/227:00 am
YOW
-
BWI
2 stops11h 32m
Multiple Airlines
Deal found 5/4$476
This Kiwi.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:23 pm
BWI
-
YOW
2 stops19h 30m
Multiple Airlines
Mon 6/157:00 am
YOW
-
BWI
1 stop29h 13m
Multiple Airlines
Deal found 5/9$481
This Kiwi.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:52 am
BWI
-
YOW
2 stops27h 23m
Multiple Airlines
Sat 6/137:00 am
YOW
-
BWI
1 stop13h 56m
Multiple Airlines
Deal found 5/6$486
This Kiwi.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:45 am
BWI
-
YOW
2 stops29h 32m
Multiple Airlines
Sat 6/137:00 am
YOW
-
BWI
1 stop13h 56m
Multiple Airlines
Deal found 5/9$551
This Kiwi.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/259:28 pm
BWI
-
YOW
2 stops23h 12m
Multiple Airlines
Mon 8/34:15 pm
YOW
-
BWI
1 stop16h 49m
Multiple Airlines
Deal found 5/6$578
This Kiwi.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:07 pm
BWI
-
YOW
2 stops17h 13m
Multiple Airlines
Mon 7/137:00 am
YOW
-
BWI
1 stop29h 15m
Multiple Airlines
Deal found 5/6$598
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/89:32 pm
BWI
-
YOW
2 stops20h 08m
Multiple Airlines
Fri 8/147:00 am
YOW
-
BWI
1 stop13h 33m
Multiple Airlines
Deal found 5/5$606
This Kiwi.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:30 pm
BWI
-
YOW
1 stop17h 03m
Multiple Airlines
Mon 6/222:20 pm
YOW
-
BWI
2 stops17h 15m
Multiple Airlines
Deal found 5/7$615
This Kiwi.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/269:30 pm
BWI
-
YOW
1 stop17h 03m
Multiple Airlines
Sat 7/42:20 pm
YOW
-
BWI
2 stops17h 16m
Multiple Airlines
Deal found 5/6$625
This Kiwi.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/201:29 pm
BWI
-
YOW
2 stops28h 08m
Multiple Airlines
Sat 6/277:00 am
YOW
-
BWI
1 stop13h 56m
Multiple Airlines
Deal found 5/6$631

Find flight deals from Baltimore to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$433
(Kiwi.com)

One-way from

$187
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$447
Provider with most accurate pricing for Baltimore/Washington-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Ottawa flights.
Search Deals
From Baltimore/Washington to Ottawa
Search Deals
One-way flight from Baltimore/Washington to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 9, 2026.
Use the filters below to find and compare flights from Baltimore to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 8/4

1:10 pm-8:40 pm

2 stops31h 30m

Ottawa

Sat 8/8

7:00 am-8:33 pm

1 stop13h 33m

$735

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 7/14

8:16 am-1:59 pm

1 stop5h 43m

Ottawa

Tue 7/14

5:20 pm-9:27 am

1 stop16h 07m

$803

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 7/8

6:15 am-1:59 pm

1 stop7h 44m

Ottawa

Wed 7/15

5:20 pm-12:28 am

1 stop7h 08m

$852

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sat 8/8

6:15 am-1:59 pm

1 stop7h 44m

Ottawa

Sat 8/15

6:25 am-1:57 pm

1 stop7h 32m

$852

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sun 6/28

8:16 am-5:07 pm

1 stop8h 51m

Ottawa

Tue 6/30

5:20 pm-12:28 am

1 stop7h 08m

$852

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 6/18

8:25 am-5:07 pm

1 stop8h 42m

Ottawa

Mon 6/22

6:25 am-1:54 pm

1 stop7h 29m

$852

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 6/18

8:25 am-5:07 pm

1 stop8h 42m

Ottawa

Sun 6/21

6:25 am-1:54 pm

1 stop7h 29m

$852
Quickest round-trip

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 7/14

8:16 am-1:59 pm

1 stop5h 43m

Ottawa

Sat 7/18

6:25 am-1:58 pm

1 stop7h 33m

$852

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 8/4

6:15 am-1:59 pm

1 stop7h 44m

Ottawa

Sat 8/8

5:20 pm-9:27 am

1 stop16h 07m

$852

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 6/23

10:40 am-5:07 pm

1 stop6h 27m

Ottawa

Wed 7/22

10:44 am-9:26 pm

1 stop10h 42m

$852

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Baltimore to Ottawa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Ottawa in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Ottawa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Ottawa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Ottawa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Ottawa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Baltimore to Ottawa?

    A quick flight from Baltimore to Ottawa can take about 5h 43m. United Airlines provides one of the quickest options available for as low as $803. There are 427 mi between Baltimore and Ottawa.

  • Can I find deals for flights from Baltimore to Ottawa that include hotel bookings?

    Yes. In addition to deals on Baltimore to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Ottawa.

  • Can I find deals for business class flights from Baltimore to Ottawa?

    Yes. Cheapflights offers flight deals from Baltimore to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

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